Loading Documentation/arm/memory.txt +5 −6 Original line number Original line Diff line number Diff line Loading @@ -51,15 +51,14 @@ ffc00000 ffefffff DMA memory mapping region. Memory returned ff000000 ffbfffff Reserved for future expansion of DMA ff000000 ffbfffff Reserved for future expansion of DMA mapping region. mapping region. VMALLOC_END feffffff Free for platform use, recommended. VMALLOC_END must be aligned to a 2MB boundary. VMALLOC_START VMALLOC_END-1 vmalloc() / ioremap() space. VMALLOC_START VMALLOC_END-1 vmalloc() / ioremap() space. Memory returned by vmalloc/ioremap will Memory returned by vmalloc/ioremap will be dynamically placed in this region. be dynamically placed in this region. VMALLOC_START may be based upon the value Machine specific static mappings are also of the high_memory variable. located here through iotable_init(). VMALLOC_START is based upon the value of the high_memory variable, and VMALLOC_END is equal to 0xff000000. PAGE_OFFSET high_memory-1 Kernel direct-mapped RAM region. PAGE_OFFSET high_memory-1 Kernel direct-mapped RAM region. This maps the platforms RAM, and typically This maps the platforms RAM, and typically Loading Documentation/devicetree/bindings/arm/gic.txt +4 −0 Original line number Original line Diff line number Diff line Loading @@ -42,6 +42,10 @@ Optional - interrupts : Interrupt source of the parent interrupt controller. Only - interrupts : Interrupt source of the parent interrupt controller. Only present on secondary GICs. present on secondary GICs. - cpu-offset : per-cpu offset within the distributor and cpu interface regions, used when the GIC doesn't have banked registers. The offset is cpu-offset * cpu-nr. Example: Example: intc: interrupt-controller@fff11000 { intc: interrupt-controller@fff11000 { Loading Documentation/devicetree/bindings/arm/vic.txt 0 → 100644 +29 −0 Original line number Original line Diff line number Diff line * ARM Vectored Interrupt Controller One or more Vectored Interrupt Controllers (VIC's) can be connected in an ARM system for interrupt routing. For multiple controllers they can either be nested or have the outputs wire-OR'd together. Required properties: - compatible : should be one of "arm,pl190-vic" "arm,pl192-vic" - interrupt-controller : Identifies the node as an interrupt controller - #interrupt-cells : The number of cells to define the interrupts. Must be 1 as the VIC has no configuration options for interrupt sources. The cell is a u32 and defines the interrupt number. - reg : The register bank for the VIC. Optional properties: - interrupts : Interrupt source for parent controllers if the VIC is nested. Example: vic0: interrupt-controller@60000 { compatible = "arm,pl192-vic"; interrupt-controller; #interrupt-cells = <1>; reg = <0x60000 0x1000>; }; arch/arm/Kconfig +2 −2 Original line number Original line Diff line number Diff line Loading @@ -1971,7 +1971,7 @@ endchoice config XIP_KERNEL config XIP_KERNEL bool "Kernel Execute-In-Place from ROM" bool "Kernel Execute-In-Place from ROM" depends on !ZBOOT_ROM depends on !ZBOOT_ROM && !ARM_LPAE help help Execute-In-Place allows the kernel to run from non-volatile storage Execute-In-Place allows the kernel to run from non-volatile storage directly addressable by the CPU, such as NOR flash. This saves RAM directly addressable by the CPU, such as NOR flash. This saves RAM Loading Loading @@ -2001,7 +2001,7 @@ config XIP_PHYS_ADDR config KEXEC config KEXEC bool "Kexec system call (EXPERIMENTAL)" bool "Kexec system call (EXPERIMENTAL)" depends on EXPERIMENTAL depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU) help help kexec is a system call that implements the ability to shutdown your kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot current kernel, and to start another kernel. It is like a reboot Loading arch/arm/boot/compressed/head.S +1 −0 Original line number Original line Diff line number Diff line Loading @@ -659,6 +659,7 @@ __armv7_mmu_cache_on: mcrne p15, 0, r3, c2, c0, 0 @ load page table pointer mcrne p15, 0, r3, c2, c0, 0 @ load page table pointer mcrne p15, 0, r1, c3, c0, 0 @ load domain access control mcrne p15, 0, r1, c3, c0, 0 @ load domain access control #endif #endif mcr p15, 0, r0, c7, c5, 4 @ ISB mcr p15, 0, r0, c1, c0, 0 @ load control register mcr p15, 0, r0, c1, c0, 0 @ load control register mrc p15, 0, r0, c1, c0, 0 @ and read it back mrc p15, 0, r0, c1, c0, 0 @ and read it back mov r0, #0 mov r0, #0 Loading Loading
Documentation/arm/memory.txt +5 −6 Original line number Original line Diff line number Diff line Loading @@ -51,15 +51,14 @@ ffc00000 ffefffff DMA memory mapping region. Memory returned ff000000 ffbfffff Reserved for future expansion of DMA ff000000 ffbfffff Reserved for future expansion of DMA mapping region. mapping region. VMALLOC_END feffffff Free for platform use, recommended. VMALLOC_END must be aligned to a 2MB boundary. VMALLOC_START VMALLOC_END-1 vmalloc() / ioremap() space. VMALLOC_START VMALLOC_END-1 vmalloc() / ioremap() space. Memory returned by vmalloc/ioremap will Memory returned by vmalloc/ioremap will be dynamically placed in this region. be dynamically placed in this region. VMALLOC_START may be based upon the value Machine specific static mappings are also of the high_memory variable. located here through iotable_init(). VMALLOC_START is based upon the value of the high_memory variable, and VMALLOC_END is equal to 0xff000000. PAGE_OFFSET high_memory-1 Kernel direct-mapped RAM region. PAGE_OFFSET high_memory-1 Kernel direct-mapped RAM region. This maps the platforms RAM, and typically This maps the platforms RAM, and typically Loading
Documentation/devicetree/bindings/arm/gic.txt +4 −0 Original line number Original line Diff line number Diff line Loading @@ -42,6 +42,10 @@ Optional - interrupts : Interrupt source of the parent interrupt controller. Only - interrupts : Interrupt source of the parent interrupt controller. Only present on secondary GICs. present on secondary GICs. - cpu-offset : per-cpu offset within the distributor and cpu interface regions, used when the GIC doesn't have banked registers. The offset is cpu-offset * cpu-nr. Example: Example: intc: interrupt-controller@fff11000 { intc: interrupt-controller@fff11000 { Loading
Documentation/devicetree/bindings/arm/vic.txt 0 → 100644 +29 −0 Original line number Original line Diff line number Diff line * ARM Vectored Interrupt Controller One or more Vectored Interrupt Controllers (VIC's) can be connected in an ARM system for interrupt routing. For multiple controllers they can either be nested or have the outputs wire-OR'd together. Required properties: - compatible : should be one of "arm,pl190-vic" "arm,pl192-vic" - interrupt-controller : Identifies the node as an interrupt controller - #interrupt-cells : The number of cells to define the interrupts. Must be 1 as the VIC has no configuration options for interrupt sources. The cell is a u32 and defines the interrupt number. - reg : The register bank for the VIC. Optional properties: - interrupts : Interrupt source for parent controllers if the VIC is nested. Example: vic0: interrupt-controller@60000 { compatible = "arm,pl192-vic"; interrupt-controller; #interrupt-cells = <1>; reg = <0x60000 0x1000>; };
arch/arm/Kconfig +2 −2 Original line number Original line Diff line number Diff line Loading @@ -1971,7 +1971,7 @@ endchoice config XIP_KERNEL config XIP_KERNEL bool "Kernel Execute-In-Place from ROM" bool "Kernel Execute-In-Place from ROM" depends on !ZBOOT_ROM depends on !ZBOOT_ROM && !ARM_LPAE help help Execute-In-Place allows the kernel to run from non-volatile storage Execute-In-Place allows the kernel to run from non-volatile storage directly addressable by the CPU, such as NOR flash. This saves RAM directly addressable by the CPU, such as NOR flash. This saves RAM Loading Loading @@ -2001,7 +2001,7 @@ config XIP_PHYS_ADDR config KEXEC config KEXEC bool "Kexec system call (EXPERIMENTAL)" bool "Kexec system call (EXPERIMENTAL)" depends on EXPERIMENTAL depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU) help help kexec is a system call that implements the ability to shutdown your kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot current kernel, and to start another kernel. It is like a reboot Loading
arch/arm/boot/compressed/head.S +1 −0 Original line number Original line Diff line number Diff line Loading @@ -659,6 +659,7 @@ __armv7_mmu_cache_on: mcrne p15, 0, r3, c2, c0, 0 @ load page table pointer mcrne p15, 0, r3, c2, c0, 0 @ load page table pointer mcrne p15, 0, r1, c3, c0, 0 @ load domain access control mcrne p15, 0, r1, c3, c0, 0 @ load domain access control #endif #endif mcr p15, 0, r0, c7, c5, 4 @ ISB mcr p15, 0, r0, c1, c0, 0 @ load control register mcr p15, 0, r0, c1, c0, 0 @ load control register mrc p15, 0, r0, c1, c0, 0 @ and read it back mrc p15, 0, r0, c1, c0, 0 @ and read it back mov r0, #0 mov r0, #0 Loading
